Like, Nextcloud runs background tasks as a cron job which is something I’ve never seen with other hosted services.

Drupal also uses crons to run repeated tasks. By default, Drupal cron cleans out stale database records for a few tables and breaks old caches. It can be extended by the developer, though.

It’s probably a holdover from before containerised applications were ubiquitous but honestly it comes off as jank.

PHP is pre-container and pre-virtualization, so I guess you can think of it as a hack way of getting garbage collection. To be honest, the cron’s translate pretty well to k8s cronjobs. You just use the same image as the app and override the command with the cronjob command.

I have my instance running in my k3s cluster. I have its node affinity to only run on my minisforum i9. That way, I can use cert manager to manage the certs.

services:
  gluetun:
    image: qmcgaw/gluetun
    container_name: gluetun
    cap_add:
      - NET_ADMIN
    environment:
      - DNS_ADDRESS=
      - PUID=1000
      - PGID=1000
      - SERVER_CITIES=
      - FIREWALL_VPN_INPUT_PORTS=
      - TZ=Etc/UTC
      # Provider readmes: https://github.com/qdm12/gluetun-wiki/tree/main/setup/providers
      - VPN_SERVICE_PROVIDER=
      #- VPN_TYPE=openvpn
      #- OPENVPN_CUSTOM_CONFIG=/config/custom.conf
      #- VPN_TYPE=wireguard
      #- WIREGUARD_PRIVATE_KEY=
      #- WIREGUARD_ADDRESSES=
    ports:
      - 6767:6767       # bazaar
      - 7878:7878       # radaar
      - 8118:8118       # privoxy
      - 8191:8191       # flaresolverr
      - 8787:8787       # readaar
      - 8989:8989       # sonaar
      - 9091:9091       # transmission
      - 9696:9696       # prowlarr
      # You can add an forwarded listening ports your VPN provider might have here as well.
    volumes:
      - /data/gluetun:/config
  bazarr:
    image: lscr.io/linuxserver/bazarr:latest
    container_name: bazarr
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /data/bazarr:/config
      - /share/downloads/movies:/share/downloads/movies
      - /share/downloads/tv:/share/downloads/tv
    restart: unless-stopped
    network_mode: service:gluetun
  flaresolverr:
    # DockerHub mirror flaresolverr/flaresolverr:latest
    image: ghcr.io/flaresolverr/flaresolverr:latest
    container_name: flaresolverr
    environment:
      - LOG_LEVEL=info
      - LOG_HTML=false
      - CAPTCHA_SOLVER=none
      - TZ=Etc/UTC
    restart: unless-stopped
    network_mode: service:gluetun
  privoxy:
    image: caligari/privoxy:latest
    container_name: privoxy
    restart: unless-stopped
    network_mode: service:gluetun
  prowlarr:
    image: lscr.io/linuxserver/prowlarr:latest
    container_name: prowlarr
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /data/prowlarr:/config
    restart: unless-stopped
    network_mode: service:gluetun
  radarr:
    image: lscr.io/linuxserver/radarr:latest
    container_name: radarr
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /data/radarr:/config
      - /share/downloads/movies:/share/downloads/movies
    restart: unless-stopped
    network_mode: service:gluetun
  readarr:
    image: lscr.io/linuxserver/readarr:develop
    container_name: readarr
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /data/readarr:/config
      - /share/downloads/books:/share/downloads/books
    restart: unless-stopped
    network_mode: service:gluetun
  sonarr:
    image: lscr.io/linuxserver/sonarr:latest
    container_name: sonarr
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
    volumes:
      - /data/sonarr:/config
      - /share/downloads/tv:/share/downloads/tv
    restart: unless-stopped
    network_mode: service:gluetun
  transmission:
    image: lscr.io/linuxserver/transmission:latest
    container_name: transmission
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
      - TRANSMISSION_WEB_HOME= #optional
      - USER= #optional
      - PASS= #optional
      - WHITELIST= #optional
      - PEERPORT= #optional
      - HOST_WHITELIST= #optional
    volumes:
      - /data/transmission:/config
      - /share/downloads/movies:/share/downloads/movies
      - /share/downloads/books:/share/downloads/books
      - /share/downloads/tv:/share/downloads/tv
    restart: unless-stopped
    network_mode: service:gluetun
  watchtower:
    container_name: watchtower
    image: containrrr/watchtower
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    network_mode: service:gluetun

I have them all running in a docker compose, that also has gluetun as the gateway.

It’s a real basic compse file, but I can share it if you like.